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Finding the Fourth Proportional to 18,472.38, 25,491.88 and 10,088.88

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Solution

The fourth proportional to 18,472.38, 25,491.88 and 10,088.88 is: 13,922.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,472.38 : 25,491.88 = 10,088.88 : x
  2. Step 2: Convert to fraction form
    18,472.38/25,491.88 = 10,088.88/x
  3. Step 3: Cross multiply
    18,472.38x = 25,491.88 × 10,088.88
  4. Step 4: Simplify right side
    18,472.38x = 257,184,518.29
  5. Step 5: Solve for x
    x = 257,184,518.29/18,472.38
  6. Step 6: Final answer
    x = 13,922.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.